Here is triangle ABC. Draw the dilation of triangle ABC with center (2,0) and scale factor 2. Draw the dilation of triangle ABC with center (2,0) and scale factor 3. Draw the dilation of triangle ABC with center (2,0) and scale factor 12. What are the coordinates of the image of point C when triangle ABC is dilated with center (2,0) and scale factor s? Write an equation for the line containing all possible images of point C.

Respuesta :

Please find attached the images of triangle ΔABC after the dilation transformations with the following scale factors;

  • Scale factor of 2
  • Scale factor of 3
  • Scale factor of 12

  • The coordinates of the point C following a dilation with a scale factor of s are; [tex]\underline{(3\cdot s + 2, \ s)}[/tex]
  • The equation of the line is 3·y = x - 2

Methods by which the images of ΔABC are found

The coordinates of the triangle obtained from a similar question posted online are;

(2, 0), (5, 1), and (5, 0)

The center of dilation is (2, 0)

First part

The scale factor of dilation = 2

Given that the center of dilation is the point (2, 0) on the preimage, we have;

The coordinates of the image are;

(2, 0), (2 ×(5 - 2) + 2, (2 × (1 - 0)), (2 × (5 - 2) + 2, 0)

Which gives;

The coordinates of the vertices of the image are; (2, 0), (8, 2), (8, 0)

Please find the drawing of the image of the dilation of triangle ΔABC with a scale factor of 2 attached.

Second [part;

The scale factor = 3

Center of dilation = (2, 0)

The coordinates of the image are therefore;

(2, 0), (3 × (5 - 2) + 2, (3 × (1 - 0)), (3 × (5 - 2) + 2, 0)

Which gives;

(2, 0), (11, 3), and (11, 0)

  • Please find attached the drawing of the image of the dilation of triangle ΔABC with a scale factor of 3

Third part;

The scale factor = 12

Center of dilation = (2, 0)

The coordinates of the image are;

(2, 0), (12 × (5 - 2), 12 × (1 - 0)), (12 × (5 - 2), 0)

Which gives;

(2, 0), (36, 12), (36, 0)

  • Please find attached the drawing of the image of ΔABC having a scale factor of 12

Fourth part

Center of dilation = (2, 0)

Scale factor of dilation = s

The coordinates of the image are;

A(2, 0), C(s × (5 - 2) + 2), s × (1 - 0)), B(s × (5 - 2) + 2, 0)

Which gives;

  • The coordinate of point C is [tex]\underline{ (3 \cdot s + 2, \ s)}[/tex]

Fifth part

The slope of the line is m, which is equal to the slope of the side [tex]\mathbf{\overline{AC}}[/tex], of ΔABC, which is given as follows;

[tex]m = \mathbf{\dfrac{1 - 0}{5 - 2}} = \dfrac{1}{3} [/tex]

The equation of the line in point and slope form is therefore;

[tex]y =\mathbf{ \dfrac{1}{3} \times (x - 2)}[/tex]

Which gives;

3·y = x - 2

  • The equation of the line is 3·y = x - 2

Learn more about dilation transformation here:

https://brainly.com/question/12561082

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